﻿using System;
using System.Collections.Generic;
using Microsoft.Practices.ServiceLocation;

namespace Drill.Integration.CommonServiceLocator
{
    public class ServiceLocatorAdapter : IServiceLocator
    {
	    private readonly IDependencyResolver _dependencyResolver;

		public ServiceLocatorAdapter(IDependencyResolver dependencyResolver)
		{
			if (null == dependencyResolver)
			{
				throw new ArgumentNullException("dependencyResolver");
			}
			_dependencyResolver = dependencyResolver;
		}

	    /// <summary>
	    /// Gets the service object of the specified type.
	    /// </summary>
	    /// <returns>
	    /// A service object of type <paramref name="serviceType"/>.-or- null if there is no service object of type <paramref name="serviceType"/>.
	    /// </returns>
	    /// <param name="serviceType">An object that specifies the type of service object to get. </param><filterpriority>2</filterpriority>
	    public object GetService(Type serviceType)
	    {
		    return _dependencyResolver.GetInstance(serviceType);
	    }

	    public object GetInstance(Type serviceType)
	    {
			return _dependencyResolver.GetInstance(serviceType);
	    }

	    public object GetInstance(Type serviceType, string key)
	    {
			return _dependencyResolver.GetInstance(serviceType, key);
	    }

	    public IEnumerable<object> GetAllInstances(Type serviceType)
	    {
			return (IEnumerable<object>)_dependencyResolver.GetAllInstances(serviceType);
	    }

	    public TService GetInstance<TService>()
	    {
		    return _dependencyResolver.GetInstance<TService>();
	    }

	    public TService GetInstance<TService>(string key)
	    {
			return _dependencyResolver.GetInstance<TService>(key);
	    }

	    public IEnumerable<TService> GetAllInstances<TService>()
	    {
			return _dependencyResolver.GetAllInstances<TService>();
	    }
    }
}
